specification: FinOps Framework specificationVersion: '1.0' schema: https://www.finops.org/framework/ provider: STACK providerId: stack-takeoff created: '2026-07-04' modified: '2026-07-04' reconciled: false tags: - Construction - Preconstruction - Takeoff - Estimating - FinOps - Cost Management - FOCUS description: >- FinOps view of STACK spend. STACK is a per-seat SaaS subscription: cost is driven by the number of full-access (estimator) seats, billed annually, with unlimited viewer seats and unlimited projects included. This is a predictable fixed/recurring model rather than usage-metered consumption - the primary cost lever is seat count and plan tier (Premium vs Pro), with volume discounts as seats are added. Programmatic API access is not separately metered per call; it is unlocked by an API-Enabled Subscription or partner agreement (quote-only, often via the API + BUILD bundle). There is no per-request API charge in the public materials. notes: >- Per-seat rates and API bundle pricing are quote-sensitive and not reconciled here; verify with STACK. Because billing is seat-based rather than usage-based, optimization centers on right-sizing full-access seats (viewers are free) and consolidating projects, not on throttling API traffic. sources: - https://www.stackct.com/pricing/ - https://www.stackct.com/takeoff-and-estimate-pricing/ - https://www.stackct.com/api-build-pricing/ - https://www.stackct.com/developers/ - https://focus.finops.org/focus-specification/v1-3/ alignedWith: framework: FinOps Foundation Framework frameworkUrl: https://www.finops.org/framework/ dataSpec: FOCUS dataSpecVersion: '1.3' dataSpecUrl: https://focus.finops.org/focus-specification/v1-3/ publisherName: STACK Construction Technologies serviceCategory: Construction Software (SaaS) billingModel: pricingCategory: Subscription billingFrequency: Annual billingCurrency: USD chargeCategories: - Purchase - Adjustment focusColumns: ServiceName: STACK Takeoff & Estimate ServiceCategory: Construction Software ProviderName: STACK Construction Technologies PublisherName: STACK Construction Technologies InvoiceIssuerName: STACK Construction Technologies BillingCurrency: USD ChargeCategory: Purchase PricingCategory: Subscription meters: - name: full_access_seats description: Number of full-access (estimator) seats subscribed; the primary cost driver, billed per seat annually. unit: seats aggregation: max dimensions: - account - plan - name: viewer_seats description: View-only seats; included at no additional charge on paid plans. unit: seats aggregation: max dimensions: - account - name: api_subscription description: API-Enabled Subscription / API + BUILD bundle unlocking programmatic access; quote-based, not per-call metered. unit: contract aggregation: max dimensions: - account principles: - name: Visibility description: Track subscribed full-access seat count and plan tier per account; API access is a subscription flag, not a metered stream. - name: Allocation description: Map full-access seats to estimators/teams so subscription cost lands on the right cost centers; viewer seats are free. - name: Optimization description: Right-size full-access seats (deactivate unused estimators), use free viewer seats for stakeholders, and negotiate volume discounts as seats grow. - name: Accountability description: Review seat utilization ahead of each annual renewal; confirm the API + BUILD bundle is still needed for active integrations. maintainers: - FN: Kin Lane email: kin@apievangelist.com